Machine for treating sewage, garbage, and the like



APPLICATION FILED DEC.26, I914.

Patented Feb. 3, 1920.

lJ NITED STATES PATENT OFFICE.

JOHN J. SMITH, OFBROOKLINE, MASSACHUSETTS, ASSIGNOR, BY MESNE ASElIG-NMENTS, TO NATIONAL SElVAGE AND GARBAGE OORPOB ATIQN, 0F BOSTON, MASSACHUSETTS,

A QORPORATIONDF MASSACHUSETTS.

MACHINE FOR TREATING SEW/AGE, GARBAGE, AND THE LIKE.

Original application filed April 14, 1913, Serial No. 760,906.

Specification of Letters Patent.

26, 1814. Serial No. 879,190.

To all whom it may concern Be it known that 1, JOHN J., SMITH, of Erookline, in the county of Norfolk and State of lvlassachusetts, have invented a new and useful Machine for Treating Sewage, Garbage, and the like, of which the following is a specification this, application belng adivision of my application Ser. 'No. 760,906, filed April 1%, 1913.

The main object of my invention is to pro vide a simple, efficient machine for treating sewage, garbage and the'like so as to retain the desirable parts of said material and particularly the material for use as fertilizer. Another object is to render the treatment of the material harmless so far as giving off deleterious gases is concerned.

My invention consists partly in a machine for applying heat in the neighborhood of the material and then removing the moisture by condensation.

A feature of my invention consists in the draining off the material and another feature is the filtering apparatus.

Other features will be pointed out below.

In the drawings: 7

Figure l is a sectional elevation of a ma chine embodying my invention;

Fig. 2 is a sectional elevation on a large scale showing a filter member; and

Fig. 3 is a broken partial plan (enlarged) of the filter floor, theremovable members being shown without the filling material.

The sewage or garbageis admitted to receptacle A and from there passes through opening a controlled by gate valve 0.. As the material passes through said opening it falls upon carrier B made of wire or otherwise perforatedtoallow'for drainage. portion of the water in the material will drain through the carrier B and carrier B and into chamber D and the rest of the material will be dropped upon the larger carrier B which is perforated and as it advances water will be drained through the perforations of this carrier and fall into chambers D, D and D The material will be advanced by carrier B and then after it passes wall B a finely powdered mixture of ground bone charcoal and powdered peat loam soil will be applied from bin B the feeding of the mixture being controlled by corrugated roller B which is operated by a rierB and carrier E conveys the materialv to a suitable outlet at E. A heating device in the form of steam coils F is provided and condensing coils G operated by a suitable ammonia or other cooling plant Pl.

J represents a suitable blower for blowing on to the material a finely powdered deodorizing compound such, for example, as charcoal or earth or both it is advanced by carrier 13 in order that it may absorb and neutralize diagreeable gases iii the material and thus prevent their arising from the nioving'niass. A brush cleaner B is used toclean carrier B and is operated by a suitable belt.

The filter at the bottom of chamber D consists of a base of coarse gravel F upon which are placed a plurality of tubular tiles F the spaces between the tiles being filled with any suitable filler f, preferably cement. Within each tile F is another tubular tile -F having an annular shoulder 7 to engage the top edge of the tubular tile F. The'tile F has within it and near thebottom a galvanized wire netting f to hold in place a filling f consisting preferably of sand and charcoal. On top of this filling I prefer to use a sponge f which may be readily inserted and readily removed and thus provide a readily removable filtering material.

The tiles F are stationary so that thefiltcr bed may be easily kept clean by removing the tiles F and quickly replacing them by others and the tiles F may be cleaned by taking out the sand and cha coal and replacing them with clean sand and charcoal.

In using my system the material will be partially drained by iember B and partially by B the water dropping into chainber D, passing through the filters F and thence from beneath chamber D into char. ber D and is then filtered through the filters 1* which are like those of chamber D and form the floor of chamber D, wall D being waterproof and the clear water falling into chamber D and thence out to the ocean or elsewhere through outlet D, the water in D being available in case outlet D is not used, for use in the condensing coils through pipe f or for other uses. The blower applies deodorizing compound to absorb and neutralize the gases and prevent the Waste of valuable fertilizing matter and to prevent the escape of harmful gases which might be injurious to attendants or to others. Before reaching the steam coils, and preferably just before reaching them, deodorizing compound is applied to quiet the gases by absorbing and neutralizing them so that they will not be driven off when the material comes into adjacency with the steam coils, the heat of vhich makes the air in the neighborhood of the material to be dried more readily take up What moisture remains in the material and renders that moisture in condition to be condensed When the material advances on carrier E- into adjacency to the condensing coils at which time the moisture will be condensed on the condensing coils because 01? the coldness of the latter and the material free from moisture will pass to outlet E in readiness for use as a fertilizer.

My machine is very simple but at the same time highly efiicient as it preserves a very high percentage of the material available for fertilizing purposes and at the same time is not in any Way harmful to attendants or a nuisance to the neighborhood.

My invention covers the use of a deodorizing solid preferably in powder form and this deodorizer is preferably charcoal or earth or both, my discovery being that the gases will be fully absorbed and neutralized by the application to the material of such deodorizing material.

I do not claim the filtering device as such nor the cleaning of the carrier as such in this application as I intend to make those features the subject or anotherapplication or other applications.

What I claim is: I V

' 1. A machine for treating sewage, garbage and the like comprising a non-liquid heat ing device; a condensing device; and means to carry the material into adjacency to said heating device and then into adjacency to said condensing device.

2. A machine for treating sewage, garbage by the carrier; a heating device;

and the like comprising means to apply deodorizer to the material to be treated; a heating device; a condensing device; and means to carry the material and deodorizer first into adjacency to said heating device and then into adjacency to said condensing device.

3. A machine for treatin sewage, garbage or the like comprising means to apply deodorizer to the material to be treated; means to heat the material after said application, and cooling means for liquefying the moisture after the material has been so heated.

l. A machine for treating sewage, garbage and the like comprising a draining carrier for the material; means to apply deodorizer to the material; a heating device; a con densing device; and means to carry the material and deodorizer first into adjacency to said heating device and then into adjacency to said condensing device.

A machine fortreating sewage, garbage and the like comprising a dralning carrier;

a plurality of filter chambers beneath the carrier; pa sages for conveying water between ad acent chambers; means to apply decdorizer to the material as it is advanced a condensing device; means to carry the material and deodorizer into adjacency to said heating device and then into adjacency to said con- (lensing device; and means to convey Water from one of said chambers to said condensing device.

(l. A machine for treating moisture beai ing 1 terial such as seivage, garbage and the like comprising means for heating the material; and cooling means for Withdrawing the moisture from the material after the material has been so heated.

7. A machine for treating moisture-bean ing material such as sewage, garbage or the like comprising means vhich heats, but is out of contact with, said material; and coolmg means for Withdrawing the moisture I l L rrom the materlal arter the material has been so heated.

JOHN J. SMITH.

lVitnesses ARTHUR F. RANDALL, GEORGE A. ROCKWELL. 

